https://doi.org/10.1140/epja/i2006-10102-1
Hadron Physics
Partial decay widths of baryons in the spin-momentum operator expansion method
1
HISKP, Universität Bonn, D-53115, Bonn, Russia
2
Petersburg Nuclear Physics Institute, D-53115, Gatchina, Russia
* e-mail: alexei@iskp.uni-bonn.de
Received:
19
May
2006
Accepted:
14
September
2006
Published online:
16
October
2006
The cross-sections for photo- and pion-induced production of baryon resonances and their partial decay widths to the two-body and multi-body final states are calculated in the framework of the operator expansion method. The approach is fully relativistic invariant, and it allows us to perform combined analyses of different reactions imposing directly the analyticity and unitarity constraints. All formulae are given explicitly in the form used by the Crystal Barrel Collaboration in the partial-wave analysis.
PACS: 13.75.-n Hadron-induced low- and intermediate-energy reactions and scattering ( energy ⩽ 10GeV) – / 25.43.+t Antiproton-induced reactions –
© Società Italiana di Fisica and Springer-Verlag, 2006
